ABB REF 541 Product Manual page 58

58
Feeder Terminal
MF
q
q
p>
MF MF
Fig. 11 Protection, control, measurement and supervision functions of a utility/industrial infeeder, imple-
mented with REF 54_ feeder terminals, an REA arc monitoring system and SPACOM differential
relay and voltage regulator (main single-line diagram presentation). The neutral point of the MV
network supplied by the infeeder is earthed via a high resistance.
REF 541, REF 543, REF 545.
3I > 50/51 MCS
I > 50N/51N
TCS
0
U > 59N CBCM
0
CBFP * /62
R
REF 54_
U 90V
R
SPAU 341
D 87T R
3 I >
CBFP * /62
SPAD 346C
50/51
3I >
MCS
51B
TCS
CBCM
3I> 67
I > 50N/51N R
0
SYNC 25
3U > 59
P
CBFP * /62
Q
3I~harm
3U~harm
I
0
REF 54_
1MRS750443-MBG
000
0 I
U
000
000
000
3I >
&
REA 101
0 I
3I
3U
E
EXINFDR4